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final revision grade 9

Total questions: 86

Worksheet time: 1hrs 29mins

Name
Class
Date
1.

Which pair of properties describe the elements in group 18

a)

They have 8 valence electrons and are very reactive

b)

They have 8 energy levels and are stable

c)

They are gases at room temperature and are stable

d)

They are gases at room temperature and very reactive.

2.

Which two elements on the periodic table are in the same group?

a)

Na and He

b)

O and C

c)

Li and Ne

d)

He and Ar

3.

Which two atoms are elements in the same group in the periodic table?

a)

Atom 3 and Atom 4

b)

Atom 1 and Atom 4

c)

Atom 3 and Atom 2

d)

Atom 1 and Atom 2

4.

Which one of the following techniques would best be used to separate soil and water?

a)

crystallization

b)

distillation

c)

Filtration

d)

Chromatography

5.

Which term means “a combination of two or more substances that keep their identities”?

a)

compound

b)

. solution

c)

mixture

d)

matter

6.

If an atom has a Mass of 20 and has 11 electrons surrounding the nucleus, how many Neutrons does it have?

a)

11

b)

20

c)

9

d)

Cannot tell from information given.

7.

4. Evaporation is the process of which water changes from liquid to solid.

a)

TRUE

b)

FALSE

8.

Which type of mixture has the parts that are easy to see and recognize?

a)

Heterogeneous Mixtures

b)

Homogeneous Mixtures

9.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
10.
Each column in the periodic table is called a 
a)
period
b)
group
c)
cluster
d)
unit
11.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
12.

Which two atoms are elements in the same group in the periodic table?

a)

Atom 3 and Atom 4

b)

Atom 1 and Atom 4

c)

Atom 3 and Atom 2

d)

Atom 1 and Atom 2

13.

Carbon

a)

CA

b)

C

c)

Ca

d)

Cn

14.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
15.
What is the atomic number of this atom?
a)
1
b)
3
c)
4
d)
7
16.

Which subatomic particle has a negative charge in the atom?

a)

proton

b)

neutron

c)

electron

d)

quark

17.

How many neutrons does the isotope of lithium - 8 have?

a)

8

b)

3

c)

4

d)

5

18.
which atom has  4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
19.

Which of the following statements is correct?

a)

Protons are positively charged and neutrons are negatively charged.

b)

Protons are negatively charged and electrons are positively charged.

c)

Protons are positively charged and electrons are negatively charged.

20.

Who discovered the subatomic particle "electron"?

a)

Dalton

b)

Thomson

c)

Rutherford

d)

Bohr

21.

Who established that "electrons move around the nucleus at fixed distances called orbitals"?

a)

Dalton

b)

Thomson

c)

Rutherford

d)

Bohr

22.
In a correctly written symbol what would be located in the "A" position?
a)
number of neutrons
b)
atomic number
c)
number of electrons 
d)
mass number
23.

what period would this element be in?

a)

6

b)

8

c)

3

d)

16

24.
What is the charge of an atom that has lost one electron?
a)
-1
b)
-2
c)
+1
d)
+2
25.

Which of the following correctly represents the electronic distribution in the Mg atom? Mg atomic number is 12

a)

3, 8, 1

b)

2, 8, 2

c)

1, 8, 3

d)

8, 2, 2

26.

How many valence electrons does carbon have?

a)

4

b)

5

c)

6

d)

7

27.

The electronic configuration of CARBON (2,4). What is its valency

a)

0

b)

1

c)

2

d)

3

e)

4

28.

This picture represents which of the following?

a)

element

b)

compound

29.

An atom becomes _________ when it gains electrons.

a)

Positive

b)

Negative

c)

Neutral

30.

A liquid mixture in which particles can be seen and easily separated by settling or filtration is a ____________

a)

solution

b)

suspension

c)

solvent

d)

solute

31.

Milk is an example of which type of mixture?

a)

solution

b)

suspension

c)

colloid

d)

compound

32.

Milk is an example of which type of mixture?

a)

solution

b)

suspension

c)

colloid

d)

compound

33.

Which one of the following techniques would best be used to separate soil and water?

a)

crystallization

b)

distillation

c)

Filtration

d)

Chromatography

34.

A mixture of one substance dissolved evenly throughout another

a)

Colloid

b)

Emulsion

c)

Solution

d)

Suspension

35.

Which term means “a combination of two or more substances that keep their identities”?

a)

compound

b)

. solution

c)

mixture

d)

matter

36.

What term is used to identify a mixture that has the same composition throughout?

a)

compound

b)

. solution

c)

mixture

d)

matter

37.

How would you collect the water from a mixture of water and Ethanol?

a)

Simple distillation

b)

Filtration

c)

Chromatography

d)

Decanting

38.

If an atom has a Mass of 20 and has 11 electrons surrounding the nucleus, how many Neutrons does it have?

a)

11

b)

20

c)

9

d)

Cannot tell from information given.

39.

1. In a salt solution, water remains in the container after the evaporation process.

a)

TRUE

b)

FALSE

40.

2. Distillation is the method used in purifying alcohols and also in separating petrol from crude oil.

a)

TRUE

b)

FALSE

41.

3. Distillation is the process by which a mixture is separated by heating a solution and condensing using a cooling tube.

a)

TRUE

b)

FALSE

42.

4. Evaporation is the process of which water changes from liquid to solid.

a)

TRUE

b)

FALSE

43.

5. Gasoline, kerosene, fuel oil, and lubricating oil are produced from petroleum by distillation.

a)

TRUE

b)

FALSE

44.

6. Evaporation is used to ___________.

a)

A. separate solids of different particle size

b)

B. obtain the solute from the solution

c)

C. separate liquids of different boiling points

d)

D. separate the dyes in a marker

45.

7. Ronald is trapped in an island with no drinking water except sea water. What process must he use to recover and produced drinking water.

a)

A. decantation

b)

B. evaporation

c)

C. filtration

d)

D. distillation

46.

Which type of mixture has the parts that are easy to see and recognize?

a)

Heterogeneous Mixtures

b)

Homogeneous Mixtures

47.
Is hydrogen considered a metal or a non-metal?
a)
A metal
b)
Nonmetal
c)
Metalloid
48.
How are ionic bonds formed?
a)
Transfer of electrons
b)
Sharing of electrons
49.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
50.
Two or more atoms held together by a chemical bond is called what?
a)
A molecule
b)
A molecure
51.

How many Aluminum atoms are in Al2O3?

a)

3

b)

5

c)

2

d)

1

52.

Write the correct formula for Sodium Chloride.

a)

SC

b)

SCl

c)

NaCl

d)

NaCl2

53.
What are ionic bonds?
a)
valence electrons transferred between atoms
b)
Inner most electrons transferred between atoms
54.
Covalent bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
55.
Phosphorous trichloride
a)
PCl3
b)
P3Cl
c)
P3Cl3
d)
PCL
56.

What is the electron configuration for [V] Vanadium (23) ?

a)

[Ne] 4s2 4d3

b)

[Ar] 4s2 4d3

c)

[Ne]4s2 3d3

d)

[Ar] 4s2 3d3

57.

What is the noble gas configuration for 1s2 2s2 2p6 3s2?

a)

[He] 3s2

b)

[Ne] 3s2

c)

[Ar] 3s2

d)

[Ar] 4s2

58.

Indicate electron configuration of Mn3+ ion. (Mn = 25)

a)

[Ar]4s2 3d10

b)

[Ar]4s2 3d2

c)

[Ar]3d5

d)

[Ar]3d4

59.
What is the electron configuration for F?
a)
1s2 2s2 3p5
b)
1s2 2s2 3d5
c)
1s2 2s2 2p5
d)
1s2 2p5
60.

What element has the electron configuration 1s2 2s2 2p6 3s2 3p5?

a)

Chlorine

b)

Argon

c)

Fluorine

d)

Sulfur

e)

Bromine

61.

What is the noble gas configuration for Cobalt?

a)

[Kr] 4s2 3d7

b)

[Kr] 4s2 4d7

c)

[Ar] 4s2 3d7

d)

[Ar] 4s2 4d7

62.

What is the noble gas configuration for 1s2 2s2 2p6 3s2?

a)

[He] 3s2

b)

[Ne] 3s2

c)

[Ar] 3s2

d)

[Ar] 4s2

63.

Which two atoms are elements in the same group in the periodic table?

a)

Atom 3 and Atom 4

b)

Atom 1 and Atom 4

c)

Atom 3 and Atom 2

d)

Atom 1 and Atom 2

64.

Carbon

a)

CA

b)

C

c)

Ca

d)

Cn

65.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
66.

Based on the data, which number shows the correct location of the element with 2 valence electrons and 3 energy levels.

a)

1

b)

2

c)

3

d)

4

67.

Which pair of properties describe the elements in group 18

a)

They have 8 valence electrons and are very reactive

b)

They have 8 energy levels and are stable

c)

They are gases at room temperature and are stable

d)

They are gases at room temperature and very reactive.

68.

Which two elements on the periodic table are in the same group?

a)

Na and He

b)

O and C

c)

Li and Ne

d)

He and Ar

69.

How many valence electrons are in an element in group 15 in the periodic table?

a)

5

b)

15

c)

7

d)

8

70.

Which two atoms are elements in the same group in the periodic table?

a)

Atom 3 and Atom 4

b)

Atom 1 and Atom 4

c)

Atom 3 and Atom 2

d)

Atom 1 and Atom 2

71.

Which two atoms are elements that belong in period two in the periodic table?

a)

Atom 3 and Atom 4

b)

Atom 1 and Atom 4

c)

Atom 3 and Atom 2

d)

Atom 1 and Atom 2

72.

Based on the data, which number shows the correct location of the element that is brittle and dull.

a)

1

b)

2

c)

3

d)

4

73.

What is the atomic number of Barium, Ba? (enlarge the periodic table)

a)

20

b)

38

c)

56

d)

88

74.

Isotopes have different numbers of

a)

protons

b)

neutrons

c)

electron

d)

properties

75.

Which of the following does the nucleus contain?

a)

protons and electrons

b)

neutrons and electrons

c)

protons and neutrons

76.

Who is the person credited with the formation of the "plum pudding" model?

a)

Thomson

b)

Rutherford

c)

Bohr

d)

Dalton

77.

Who discovered the subatomic particle "electron"?

a)

Dalton

b)

Thomson

c)

Rutherford

d)

Bohr

78.
The building blocks of matter
a)
Mass Number
b)
Atoms
c)
Nobel Gases
d)
Isotopes
79.

_____________________ are responsible for bonding.

a)

Neutrons

b)

Protons

c)

Electrons

d)

Valence electrons

80.

Which of the following is a property of nonmetals?

a)

poor conductors

b)

shiny

c)

high melting point

d)

malleable

81.

Which two elements have properties in common?

a)

Nitrogen and Phosphorous

b)

Oxygen and Nitrogen

c)

Sulfur and Nitrogen

82.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
83.

Why are ions formed?

a)

To make our lives difficult

b)

Because atoms want to be stable

c)

Because atoms have the same number of protons and electrons

d)

Because atoms gained neutrons

84.

What is the chemical formula of Magnesium chloride?

a)

MgCl

b)

MgCl2

c)

MgC

d)

MgC2

85.

Which of the following correctly represents the electronic distribution in the Mg atom? .

a)

3, 8, 1

b)

2, 8, 2

c)

1, 8, 3

d)

8, 2, 2

86.

How many atoms are there in the compound MgCO3?

a)

3

b)

4

c)

5

d)

6

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